The US Treasury is increasing the size of its buyback operations for longer-dated government bonds as elevated borrowing costs and concerns about the country’s fiscal outlook continue to weigh on financial markets.
From 9 September, the Treasury will increase the maximum size of selected liquidity-support buybacks from $2 billion to at least $4 billion per operation. The programme will cover longer-dated nominal Treasury securities, including bonds in the 10-year to 20-year and 20-year to 30-year maturity sectors, and will run through 4 November. Treasury said it would provide further information about future buyback sizes at its next quarterly refunding.
The decision follows a sharp rise in long-term US government bond yields. On 31 July, the 30-year Treasury yield closed at 5.27%, its highest level since 2007, according to US Treasury and Federal Reserve data. The yield has remained around the 5% mark since then, reflecting continued concerns about inflation, government borrowing and demand for longer-dated debt.
The latest move comes despite the Federal Reserve leaving interest rates unchanged at its July meeting. While the central bank’s policy rate directly influences short-term borrowing costs, longer-term Treasury yields are also shaped by inflation expectations, government borrowing requirements, economic growth prospects and investor demand.
Inflation has added to that uncertainty. Consumer prices rose 0.9% in March and another 0.6% in April, with annual inflation reaching 3.8% in April. Energy prices accounted for a large share of April’s monthly increase. The rise came as the conflict involving the US and Iran pushed oil prices higher, adding pressure to household and business costs.
Oil prices have since fallen from their wartime highs, although energy costs remain elevated compared with earlier periods. That has eased some of the immediate pressure on inflation, but investors continue to watch whether higher energy prices feed into broader price expectations.
At the same time, the US government’s borrowing needs remain substantial. The national debt passed $40 trillion in August, with publicly held debt accounting for more than $32 trillion. July alone produced a federal budget deficit of roughly $432 billion, according to recent Treasury figures cited by Reuters.
Those numbers matter for the bond market because the government must continually issue debt to finance deficits and refinance existing obligations. If investors demand higher yields to hold longer-term Treasury securities, the cost of servicing that debt can rise over time.
The Treasury’s buyback programme is designed primarily to improve liquidity by purchasing older, less actively traded securities. By providing a buyer for these bonds, the government can make it easier for investors to trade them and help the market function more smoothly. The latest increase therefore represents a larger use of an existing Treasury tool rather than a new programme aimed solely at reducing interest rates.
Whether the move can materially change the direction of long-term yields is less certain. The planned purchases are small relative to the size of the US Treasury market, which is measured in tens of trillions of dollars. Analysts have therefore cautioned that buybacks may provide some support for liquidity without addressing the wider forces pushing yields higher.
The underlying fiscal pressure is likely to remain a central issue. The Congressional Budget Office projects net federal interest outlays of about $1 trillion for 2026, up from the previous year, with annual interest costs expected to continue rising over the following decade. CBO projects net interest outlays reaching $2.1 trillion by 2036 under its current baseline.
That makes the long end of the Treasury market increasingly important for investors, policymakers and businesses. Higher government bond yields can feed through into mortgage rates, corporate borrowing costs and valuations across financial markets, while persistent inflation can limit the Federal Reserve’s room to cut rates.
For now, the Treasury’s decision offers a measure of support to a bond market that has come under pressure. It does not, however, resolve the broader questions surrounding US deficits, inflation or the amount investors are willing to pay for government debt.
The next test will be whether increased Treasury buying can improve market liquidity without simply shifting pressure elsewhere, and whether longer-term yields begin to ease as inflation and borrowing expectations change.
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